• 제어로봇시스템학회:학술대회논문집
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• 1996.10b
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• pp.672-675
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• 1996

This paper presents algorithm including Kalman filter for transfer alignment of velocity and quaternion matching method, when master inertial navigation system is a gimbled type and slave inertial navigation system is a strapdown type on a cruising ship which is naturally in motion of horizontal axis attitude. And relative attitudes are considered on a measurement equation for quaternion matching between master INS and slave INS.

• Proceedings of the Safety Management and Science Conference
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• 2008.11a
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• pp.177-187
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• 2008

Today, Advertisement affects the daily consumption life of consumers because of the features and advantages of advertisement. In particular, and so does the TV advertisement. Therefore, customer education is required for the consumers so that they can lead a rational consumption through TV advertisement quality. The purpose of this research is to offer basic data which can help consumers to acquire necessary information and conduct rational consumption through TV advertisement. Also purchasing behavior of consumers communicate, demographic background, TV advertisement quality of what is the attitude of the relative influence presents.

• International Journal of Aeronautical and Space Sciences
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• v.15 no.1
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• pp.82-90
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• 2014

In this paper, the effect of Lorentz force on the stability of attitude orientation of a charged spacecraft moving in an elliptic orbit in the geomagnetic field is considered. Euler equations are used to derive the equations of attitude motion of a charged spacecraft. The equilibrium positions and its stability are investigated separately in the pitch, roll and yaw directions. In each direction, we use the Lorentz force to identify an attitude stabilization parameter. The analytical methods confirm that we can use the Lorentz force as a stabilization method. The charge-to-mass ratio is the main key of control, in addition to the components of the radius vector of the charged center of the spacecraft, relative to the center of mass of the spacecraft. The numerical results determine stable and unstable equilibrium positions. Therefore, in order to generate optimum charge, which may stabilize the attitude motion of a spacecraft, the amount of charge on the surface of spacecraft will need to be monitored for passive control.

• International Commerce and Information Review
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• v.8 no.4
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• pp.23-41
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• 2006

The present paper aims to examine the Influences of on line word of mouth(WOM) information valence and information contents to the information searcher. Specially, to examine the interaction effect it's two variables. For that purpose, we categorize WOM information valence into two subcategories; positive and negative, and WOM content into two subcategories; objective evaluation and subjective evaluation. We conducted experimentation design 2*2 and subjects are asked to their attitude and purchase intention after they are exposed each of four different types of WOM information. The result can be summarized as follow; First, the negative WOM has stronger effect on consumer's attitude and purchase intention than positive. Second, factual WOM has stronger effect on consumer's attitude and purchase intention than subject. Finally, when consumer face negative WOM, subjective WOM has more effect on consumer's attitude and purchase intention than factual. On the contrary, when consumer face positive WOM, factual WOM has more effect on consumer's attitude and purchase intention than subject. In conclusion, the korean Foreign Trade Act and other relative acts should be revised, and both educational services and health services should be contained within the definition of "the international trade" for the governmental benefits of supporting the services exportation.

• Child Health Nursing Research
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• v.15 no.4
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• pp.392-400
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• 2009

Purpose: The purpose of this study was to identify influences of child-rearing attitude and parent-school age communication on self-efficacy of 5th and 6th graders. Methods: Data were collected using questionnaires from 460 5th and 6th graders in S city. The data were analyzed using SPSS WIN program. Results: There were significant differences in child-rearing attitude according to gender, mother's level of education, perceived atmosphere and religion. Self-efficacy was significantly correlated with school record, family income, mother's level of education, father's level of education, and perceived atmosphere. There were significant differences in communication with father according to father's level of education, and perceived atmosphere. Communication with mother was significantly correlated with father's level of education, mother's level of education and perceived atmosphere. The relative influence toward the children's self-efficacy shown in the order of importance was as follows; child-rearing attitude, school record, communication with mother, communication with father, father's level of education, family income. Conclusion: From the study, self-efficacy appears to be influenced by multiple factors such as child-rearing attitude, school record, communication with mother, communication with father, father's level of education, and family income.

• The Journal of Society for e-Business Studies
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• v.11 no.2
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• pp.111-134
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• 2006

This paper analyzes the resistance to mobile commerce services in consumer adoption process. Relative advantage, compatibility, perceived risk, complexity, self-efficacy, innovativeness and attitude for competing service have been chosen as independent variables. This paper also investigates on the significant factors which resist against adoption of mobile commerce service according to adoption phase. The results show that relative advantage, self-efficacy, perceived risk, attitude for competing service are significant factors to affect resistance to mobile commerce services. Relative advantage, perceived risk, attitude for competing service are significant resistance to mobile commerce services for consumers in before-adoption group and compatibility, complexity, self-efficacy are significant factors for consumers in after-adoption group. This study can be extended to new communication services such as Wibro and DMB to reduce resistances in early adoption phase.

• Bulletin of the Korean Space Science Society
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• 2004.04a
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• pp.66-66
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• 2004

Observability of two spacecraft system is considered with relative line-of-sight vector measurements between two spacecraft system for autonomous navigation using the linear observability analysis. First, the dynamical equations and measurement models are introduced, and the basic assumption of attitude knowledge for one of two spacecrafts is explained. Then, we introduce a pair of nominal orbits of two spacecraft system, and the observability analysis for the nominal orbits is presented with the available measurements (for the numerical observability analysis). (omitted)

• Journal of Astronomy and Space Sciences
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• v.15 no.1
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• pp.183-196
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• 1998

The Synthetic Aperture Radar(SAR) image and the Digital Elevation Model(DEM) of an target area are put into use to generate three dimensional image map. An method of image map generation is explained. The orbit and attitude determination of satellite makes it possible to model signal acquisition configuration precisely, which is a key to mapping image coordinates to geographic coordinates of concerned area. An application is made to RADARSAT in the purpose of testing its validity. To determine the orbit, zero Doppler range is used. And to determine the attitude, Doppler centroid frequency, which is the frequency observed when target is put in the center of antenna's view, is used. Conventional geocoding has been performed on the basis of direct method(mapping image coordinates to geographic coordinates), but in this reserch the inverse method(mapping from geographic coordinates to image coordinates) is taken. This paper shows that precise signal acquisition modeling based on the orbit and attitude determination of satellite as a platform leads to a satellite-centered accurate geocoding process. It also shows how to model relative motion between space-borne radar and target. And the relative motion is described in ECIC(earth-centered-initial coordinates) using Doppler equation and signal acquisition geometry.

• International Journal of Advanced Culture Technology
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• v.9 no.4
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• pp.61-70
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• 2021

At a time when children of multicultural families have begun to enter adolescence in Korea, this study examined the effects of parental support and bicultural acceptance on the career attitude maturity of multicultural adolescents. This study tried to derive the implications related to the career path of multicultural adolescents by verifying the effects of self-esteem on the relationship between parental support, bicultural acceptance, and career attitude maturity. Using the 8th Multicultural Adolescent Panel Survey data (MAPS), the relative influence of antecedent variables on career attitude maturity was confirmed by hierarchical regression analysis of the data from 1,197 respondents. Model 1 included gender and parental support, Model 2 added bicultural acceptance to Model 1, and Model 3 added self-esteem to Model 2. As a result of the study, in Model 1, women had higher career attitude maturity than men, and the more supportive their parents were, the more positive the level of career attitude maturity. The adjusted R2 of Model 1 was .058, which did not have much influence. In Model 2, gender, parental support, and bicultural acceptance had statistically significant effects on career attitude maturity, and the amount of change in F was also significant. The adjusted R2 of Model 2 was .132. In Model 3, parental support was not statistically significant, and gender, bicultural acceptance, and self-esteem had statistically significant effects on career attitude maturity. The amount of change in F was statistically significant and the adjusted R2 was .185. That is, it was confirmed that the more the women, the more the bicultural acceptance, and the higher the self-esteem, the more prepared and determined the career path. Based on the research results, the implications related to career preparation of multicultural adolescents were presented.

• Asian Journal of Business Environment
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• v.8 no.2
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• pp.23-32
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• 2018

Purpose - This study investigated the relationship among cultural disposition (Chemyeon, Noonchi, Woozzul), media use, and attitude toward luxury goods consumption. Research design, data, and methodology - We analyzed online survey data for 300 Korean Women between 20 and 39 years of age who lived in Seoul, capital of South Korea. We used multiple regression analysis to examine the relative influence of cultural orientation on cognition of luxury goods, Sobel test. to determine mediating effect, and a two-way analysis of variance in IBM SPSS 23.0. Results - The finding suggests that cultural disposition (Chemyeon, Noonchi, conspicuous Woozzul) correlated significantly with perceived self-identity, attitude toward luxury goods. The effects of Chemyeon, Noonchi, and selfish Woozzul on the attitude toward luxury goods was fully mediated by perceived self-identity. However, association between conspicuous Woozzul and attitude toward luxury goods was partially mediated by perceived self-identity. Regarding media effects, the results indicate that there were interaction effects between selfish Woozzul and amount of time spent on TV on attitude toward luxury goods, as well as between selfish Woozzul and amount of time spent on Internet. Conclusions - These findings suggest that luxury goods consumption of Korean young women is consumer behavior that reflects individual cultural disposition and media use.